Hôtel-Dieu ("hostel of God") is the old name given to the principal hospital in French towns.

The Hôtel-Dieu in Paris was founded in the year AD 660, has been extended at various times, and was entirely rebuilt between 1868-1878. One of the most ancient in France is at Angers, dating from 53.

The Hôtel-Dieu de Beaune (Côte-d'Or), founded 1443, is one of the most interesting. as it retains the picturesque disposition of its courtyard, with covered galleries on two storeys and large dormer windows and the great hall of the Hôtel-Dieu at Tonnerre, Yonne (1338), nearly 60 feet wide and over 300 feet long, is still preserved as part of the chief hospital of the town.

The Hôtel-Dieu de Montréal, founded in 1645, was the first hospital in North America; it still exists today.

Reference

Buildings and structures in France | Hospitals in France

Hôtel-Dieu | Hôtel-Dieu